View Full Version : F350
sdd6131
10-14-2007, 11:54 AM
How I the F-350 can play under the water :omg:, how do they do it? Can whole pack of battery submerg into the water?
McFig
10-14-2007, 07:31 PM
:What: Are you saying someone took their truck under water?
4wdmt
10-14-2007, 08:06 PM
Maybe he saw a video of a hilift f350 being submerged underwater and still tunning. He must be asking how can you waterproof the whole thing, most especially the battery pack.
[]Dlayer
10-15-2007, 12:28 AM
:What:
There is no such thing as waterproof r/c trucks. Water resistance maybe but I would never recommend submerging your truck under any cincumstances.
trailqeen
12-07-2007, 10:39 PM
iv seen trucks under water that were water proof didnt hurt them
Mouton
12-08-2007, 05:59 AM
I run my F-350 under water quite often. Here is how I do it:
1. Never ever run it in salt water!
2. Make sure you have read No.1!
3. Waterproof the receiver after you have connected the servos and crystal
4. Waterproof the servos.
5. Waterproof the ESC.
6. Read No.1 again.
7. Take it to swim school
This works fine for me and other, however I cannot take responsibility for your electronics. Your expeciences might be different due to other material, level of waterproofing et cetera. Only follow the advce given here if you are prepared to assume full respnisibilty for what happens. Having said that, here is how to do it:
The batterypack needs no waterproofing, so that is simple. Same goes for the motor. In fact most experienced racers actually break in their electric motors in a glass of water (1.2 V/10 minutes)! Since the F-350 will be driven outdoors, simply cover the ventilation holes with electric tape. That keeps the dirt out.
Neither the battery nor motor need waterproofing. As long as you do not run it in salt water, that is. Most metal parts dislike salt water so there is no reason to make the eletronics cope with something the rest of the truck will not take. Puddles and lakes are most often not of salt water so it is only a factor if you plan to drive it in the ocean...
What you need is some sort of sealant. There are several ways to go that work. I will describe some, of which I used the last one. As there are waterproof ESCs out there (i.e. the mTroniks) getting one of those is recommended - but not a must.
One, expensive route, is going to an electronics store (i.e. Radioshack) and get something to cover/waterproof circuit boards with. This stuff is generally very expensive. If you go fo this option you will need to (carefully) open up the reciever, servos and ESC. You then dip them in the solution and hang them up to dry. Some might require several coatings. When you do this, make sure the reciever crystal and servo/ESC leads are connected to the reciever. When you open up the servos make sure you have covered the cirquit board completely. Aviod clogging the gearbox of the servos. Assemble everything and you are good to go.
An easier and cheaper option ist to use Plastidip (http://www.plastidip.com/). Simply follow the instructions and dip everything in Plastidip. Same here, hook everything up to the reciever before you start and make sure you have a servo horn mounted on you servos.
The cheapest option is to either get some Vaseline (http://www.vaseline.com) or some 1:1 car wheel bearing grease from a garage or auto parts shop. Make sure it is 100 % free from water (some vaseline is not) and does not lead any current. I used wheel bearing grease since it can withstand high temperatures, which is good if you need to waterproof the ESC. Same here, connect everything to the reciever and remove the cover of the reciever and ESC. Use a brush and make sure you have drowned everything in vaseline/grease. I also filled the ESC and reciever housing with the stuff before I put it back together. Doing so ensures that everything is protected. The servos require some special attention. Open them up and fill the lower part with as much grease/vaseline you can stuff it with. Now, carefully, remove the top cover of the servo and add grease along the edges of the servo cover, do not forget the top hole. Add some grease to both the top gearwheel (the lower part of the splines) and around the edges of the servo cover. You can drown the entire gearbox in grease/vaseline too, but that reduces its power and increases its current draw (as it constantly needs to pull the "heavier" gears) - I do not recommend it.
Both Vaseline and auto grease work, but since auto grease can withstand higher temperatures I would recommend it over Vaseline. If you use Vaseline in an ESC some can "melt" and leak out. That is not harmfull in any way but you will need to regrease it. Therefore autogrease is the best choice.:first:
Now, once all the work is done and you are sure you are not going to dip it in salt ware, out you go!
Can anyone say what tires I ran? :LOL:
http://rsb.se/arena/attachment.php?attachmentid=2662&d=1195422286
I use the Swedish swim schools first "medal" as number plates on my F-350.:Tamiya1:
trailqeen
12-09-2007, 01:29 PM
ya what he said
dezmoon
01-03-2008, 09:04 PM
project boxes are what ive used to water proof my rigs,,,my hl has not been fully submerged but its been close on more than one occasion,,you can get multiple sizes in them as well,,,use some clear rtv to seal the box,,,and your good to go.........
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